gman1234rodz gman1234rodz
  • 03-05-2020
  • Mathematics
contestada

What is the solution of

log6x + log6(x + 5) = 2?

Respuesta :

JK94 JK94
  • 03-05-2020

Answer:

Doesn't have solution.

Step-by-step explanation:

x ≠ 0; x > 0 (I)

x - 5 > 0

x > 5 (II)

[tex]log_6 x + log_6 (x + 5) = 2 \\\ log_6 [x(x + 5)] = 2 \\\ x^2 + 5x = 36 \\\ x^2 + 5x - 36 = 0 \\\ \Delta = 5^2 - 4.1.(- 36) \\\ \Delta = 169 \\\ \sqrt{\Delta} = \pm 13 \\\ x' = \frac{- 5 + 13}{2} \\\\ x' = 4 \\\ x" = \frac{- 5 - 13}{2} \\\\ x" = - 9[/tex]

Then, this expression doesn't have solution.

I Hope I've helped you.

Answer Link
ataleese ataleese
  • 09-05-2020

Answer:

The answer is 4 on edg

Step-by-step explanation:

I just answered it :)

Answer Link

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